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This work is partially supported by Spanish MICINN under grant RTI 2018-101020-B-I00 and TECHNOFUSION III CM-S2018IEMAT-4437. This work has also been supported by Comunidad de Madrid under the agreement with UC3M in the line of Excellence of University Professors (EPUC3M14) .

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Kanyinda-Malu, CAuthor

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Simulations of optical reflectance in vertically aligned GaAs nanowires array: The effect of the geometrical structural parameters

Publicated to:Physica B-Condensed Matter. 639 (413963): 413963- - 2022-08-15 639(413963), DOI: 10.1016/j.physb.2022.413963

Authors: de la Cruz, R M; Kanyinda-Malu, C; Santiuste, J E Munoz

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Abstract

We report the effects of radius-, length-and pitch-sizes on the optical reflectance of a periodic square array of GaAs nanowires embedded in epoxy. The simulated system is a multilayer array constituted by alternating layers of epoxy and an effective medium of GaAs nanowires embedded in epoxy. For both s-and p-polarizations, we observe an oscillating behavior in the reflectance spectra, as a consequence of interferences in periodical systems. We found that the radius-and pitch-sizes significantly affect the reflectance of GaAs nanowires array, while the length-sizes do not present evidence of changes in the optical reflectance. For higher radius, the number of oscillations increases and consequently, the peak-to-peak distance decreases. Besides, there is a red-shift of the reflectance for increasing radius. For higher pitch, the number of oscillations also increases, and a red-shift is observed. We obtain dependence laws for the peak-to-peak distance and red-shift versus radius and versus pitch. These dependences obey approximate quadratic relations. Attending to the reflectance dependence on the light incidence angle, we have found that for s-polarized light, the reflectance is higher with increasing angles, in comparison to p-polarized light cases, independently of the radius and pitch values. For both polarizations, we found that the reflectance is increasing for greater radii and smaller pitches, independently of the incident angle.

Keywords

ConvergenceDoppler effectEmissionGaas nanowire arrayGaas nanowiresGaas nanowires arrayGallium arsenideGeometrical effectGeometrical effectsIii-v semiconductorsIncident lightLight polarizationLight-absorptionMatrix formalismMaxwell-garnettMaxwell-garnett effective modelMaxwell–garnett effective modelModelsNanowiresNanowires (array)Optical reflectanceReflectanceReflectionSemiconducting galliumSilicon nanowiresSolar-cellsTransfer matrix formalismTransfer matrix methodTransfer matrixes

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Physica B-Condensed Matter due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Electrical and Electronic Engineering. Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Physics, Condensed Matter.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.07, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-04, the following number of citations:

  • WoS: 3
  • Scopus: 4
  • OpenCitations: 3

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-04:

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.85.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.